Product parameters: Product Name: Indoor Door Lock Panel material: aluminum alloy Product color: Titanium black gold Center distance: 5cm Clip distance: 4.5cm Suitable for door thickness: 3.5~4.5cm Weight: 882g Product List: 1, Panel screws x4 2, Lock core x1 3, Lock body x1 4, The key x3 5, Lock body screw x4 6, Box x1 7, Square bar x1 8, Lock screw x1 9, Iron sheet x1 10. Panel x2 Note: New doors In addition to security doors, most interior doors can be used. Old door change lock Please check the size before buying to avoid improper size!   Q1. Are you a manufacturer or trading company? A1:We are a professional door and windows seal manufacturer with more than 30 years 'experience for domestic and International market. Q2. What is payment method? A2: For samples: T/T, western union. For orders: We prefer T/T, other ways should be confirmed first. For new customer,30% advanced payment before producing ,70% before delivering usually